#include<bits/stdc++.h>
using namespace std;
int main(){
    char s[1000];
    char n;
    cin>>s>>n;
    for(int i=0;i<strlen(s);i++){
        if(s[i]!=n){
            cout<<s[i];
        }
    }
    return 0;
}
/**************************************************************
	Problem: 1131
	User: luyanchen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/